Answer:
ans is 31
Explanation:
the formula in finding 5th term in sequence is 31
2n + 1
2n + 1 it goes like this
1×2 + 1 = 3
2×3 + 1 = 7
2×7 + 1 = 15
2 × 15 + 1 = 31
6.6m questions
8.7m answers